single-path ratio thermometer

... single-path diagonal-beam flowmeter,单声道斜束式流量计 single-path ratio thermometer,单通道比色温度计 single piston pressure-vacuum gauge,单活塞压力真空计 ...

 single piston pressure-vacuum gauge

single piston pressure-vacuum gauge 单活塞压力真空计; 单通道比色温度计 vacuum oxygen partial pressure gauge 真空氧分压计 ..

 path ratio thermometer

比色温度 color temperature ; colour temperature 单通道比色温度计 path ratio thermometer 双通道比色温度计 path rato thermometer ; path ratio thermometer ..